Improvement in sewing-machine



Patented Jim. z8, 1868..

Zijl.

E. W. FRENCH. vSEWING MACHINE.

atten .tutes identit @fitta EDWIN W. FRENCH, A 0F SOUTH 'SCITUATE, MASSACHUSETTS.

Letters .Patent No. 73,709, elated January 28, 1868. p l

IMPROVEMENT IN SEWING-MACHINE.

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Beit hnon'n that I, Enwn: Wnsnnunn FRENCH, oi' South Scituate, in the county of Plymouth, and State of Massachusetts, have inrenteda new and useful Improvement in Machine for Sewing Hose or other Tubular Work; and I do Vhereby declare that the followingis a full, clear, and ex'act description of the construction and operation of the same, .reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is au elevation (front) of the machine, `with two posts removed.

Figure 2 is a.' longitudinal section.

Figure -3 is a cross-section.

The object of my invention is to produce a machine for sowing tubular work of any desired length, it being designed more especially to the manufacture ot hydraulic hose; und the invention consists in the combination, with a sewing-mechanism, ef a tube containing a looper, 'which is actuated by a reciprocating bar in such a manner that one or more rions of stitches may be successively sened through the double thickness of the hose, from the inside to the outside, in parallel lines with the edges of the same, and also that the ends of the pieces of which hose is composcdmay be placed one within the other, and scived together in diagonal or cross-rows of stitches, all in one continuous operation. l

vReferring to the drawings, A. represents the framework or bed which supports the sewing-mechanism and tube, upon which the material to be sewcd is placed. C .represents a tube oi' metal,or other suitable material,

' and of any desired or suitable length or size. It is supported at one end in a standard, B,`and near the other end upon a concave roller, supported in a frame, D, the ppenin g of which is suic'ently large to admit of the free passage of the material being operated upon, through the same, over and around t-he tube. The frame or folder D is so arranged as to be Vcapable of being easily shifted and secured to the frame or bed A at either side' of the needle. The tube C need not be as large as the stock to be served, and there can be placed upon it a sliding sleeve or tube, Ato accommodate hose of larger size than that made u'pon the tube itself. Within the tube, at a point under the needle, and where it is perforatedfor the entrance ot' the needle, is a Whirl or looper, b, as shown in igs. 2 and 3, the same having a hole passing through it at one side longitudinally, through which hole the thread passes frein the spool, to be acted upon bythe needle. reciprocating rotary motion is imparted to .the looper @by means of a rack on a reciprocating rod, c, the said rod extending to the end of the tube C, where it is attaehedfto a lever, vvcl, which' is operated through a. system of levers and rods, and au eccentric, by the motive-power. On one end oi' the frame or bed Anis an upright open frame, composed of standards Il, circular supports'HiI-I, and within the openings in the said supports are fitted, so as t'o rotate freely, the ilangcd plates G G. By this construction the needle-bar and attachments are enabled to be readily rotated, f and free access to be had to all the Working parts of the. mechanism for repairs and adjustment. Upon the frame H H is mounted an upright, H, which supports a walking-beam, F, to the front end of which latter is attached thenecdle-bar P. The said needle-,bar passes down through, the plates G G', and is madefto-cuntrol the movements of ,the presser, feed, and guide or cast-oli, and the whole may be made to change their posi tions relatively tothowlooper, so as to admit of the stitch being scncd in a direction atany desired angle with the longitudinal row Yof stitches, by which means the edges of the'hos'e, and the en ds of the. pieces of which the hose is composed, may be sewed at one continuous operation. The presser-bar J passesthrough the plates G G', and is pressed downwards by vnea-ns of a spring, k. It is raised by the direct action of the needle-bar acting upon' u. pawl or dog, m, which latter is slotted, and moves on a pin in the plate G, and engages with a ratchet on the presser-bar. Thesaid pawl'is disengaged from the ratchet by means of a cam on the pawl, operated by aprojeetion on the needle-bar as'the latter descends. This device is made adjustable so as to regalato the amount of' lift to any variation in the thickness of the stock. In the lower portion of the presser-bar ism-ranged the feed,which is madein two parts, n and 1J, the partn being attached to the presser, and allowed la certain motion, by means of grooves orsl'ots working over pins, as shown in iig. 2. The'part p is pivoted to thc lower end of the part n, and provided with points at its lower end.- The. feed is operated by a system of levers, t, `aand r, the latter being bent, and made t catch on a projection, g, on the needle-bar, as thel latter rises. When the needle-bar descends, thc feed is returned to the presser by means oi the spring u. The pro jection q may 'be adjusted up or down oh the bar, to varythe feed. The guide or cast-off bar is raised'and lowered by means of a projection from the needle-bnr, in connection with a slot in the guidelbar, andV is held, when not engaged by the said projection, by means of a spring, or by friction. Underneath the work-supporting tube C, near the point at which the needle enters, is arranged a roller, w,`for.med with a concave surface to cojrrespond with thevconvex surface of the tube, for the purpose of allowing the work to be easily moved along while being sewed. The said rolier'is supported in standards on the frame ofthe machine.

' The material to be sewed is placed around the tube, the edges being lapped and passed through the fr anie or folder to the needle. On setting the machine in motion, the material will be fed through the frame or folder, the needle passing into and out ot'v the whirl, receiving the thread, and sewing in the usual manner. By turning around the needle and accompanying devices, thematerial may be fed back through the frame or folder, the position of the latter being shifted, thus adding another row of stitches .parallel with the first. It may thus be fed back and vfort-h until the desired amount of stitching is accomplished, without breaking the continuity of the thread. In turning'. the needle and accompanying devices to make the cross-stitch, it isnot necessary to change the 'position of the whirl, es the'latter makes one revolution and a half at every stitch, engaging the loop every time. To make the cross-stitch, the needle and frame are turned a. little less than onequarter of' an entire revolution, when the loop will be caught equally as well as in the first position. It will thus be seen that I am enabled to feed the work forwards or backwards along the tube, or at any angle around the same, so that the stitching may all be performed at one continuons operation.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a tube, a looper, and a folding-mechanism, of a sewing and feeding-mechanism, substantially such as described, so that the material being operated upon may be fed and scwed successively forward and backward, and around the tube, so as to connect the edges of the material, and theends oi' portions of the same, all in one continuous operation, substantially as described.

2. I claimthc feed formed of theparts n andp, in connection with the presser-bar, and operated through a system of levers by the action' of the needle-bar, as set forth. A`

3. I claim the combination, with a presser-bnr, of a pnwl und ratchet, substantially as and for the purpose set forth.

In testimony whereof, Ihavesgncd my name to this specification in the presence of two snbscribing'witnesses.

' EDWIN W. FRENCH.

Witnesses:

THOMAS ToLMAN, SUSAN A. ToLMAN. 

